National Junior College — H2 Math prelim questions & solutions
National Junior College · Paper 1Solve simultaneous complex equations, then interpret w/z = i as a 90° rotation.National Junior College · Paper 1Binomial and exponential series build a composite expansion, then integrate to approximate an integral.National Junior College · Paper 2Find modulus and argument of a complex number, then use Argand-diagram geometry to deduce arg(2-w).